Oceans Chapter 3 questions well
answered already passed
D) precision-depth recorder (PDR) - correct answer ✔✔1) The instrument that emits a high-
frequency sound beam to measure the depth of the ocean developed in the 1950s is the
________.
C) sound waves (specifically seismic reflecting profiling) - correct answer ✔✔2) The method that
is used most frequently to investigate sediment and rock layers of the sea floor is ________.
A) the shape of the ocean surface reflects large features on the seafloor - correct answer ✔✔3)
Satellites are used to map the ocean floor because ________.
D) interior continental areas and abyssal plains on the ocean floor - correct answer ✔✔4) The
two relatively flat areas on the hypsographic curve represent ________.
A) shelf, slope, rise, abyssal plain - correct answer ✔✔5) The correct order of seafloor features
from the coast to the mid-ocean ridge is ________.
C) Deep-sea trenches - correct answer ✔✔6) Active continental margins are characterized by
which of the following?
D) Broad continental shelves - correct answer ✔✔7) Characteristics of passive continental
margins include which of the following? 7) _____
B) Fracture zone - correct answer ✔✔8) Which of the following features is related to transform
faults along mid-ocean ridges?
, A) continental rise - correct answer ✔✔9) Directly seaward of the continental shelf is a more
steeply sloping region called the ________.
B) turbidity currents - correct answer ✔✔10) Underwater avalanches of muddy water mixed
with rocks and debris are ________.
A) erosion by turbidity currents - correct answer ✔✔11) Submarine canyons were most likely
formed by ________.
A) abyssal hills - correct answer ✔✔12) Extending from the base of the continental rises into the
deep-ocean basins are flat depositional surfaces called
D) the presence of convergent active margins - correct answer ✔✔13) Relatively few abyssal
plains are located in the Pacific Ocean due to ________.
A) seamounts - correct answer ✔✔14) Volcanic peaks on the deep-ocean floor with conical tops
are called ________.
D) abyssal hills - correct answer ✔✔15) Volcanic features on the ocean floor that are less than
1,000 meters (0.6 miles) tall are called ________.
B) oceanic trenches - correct answer ✔✔16) Along the margins of the Pacific are found most of
Earth's ________.
C) deep-sea trenches - correct answer ✔✔17) Older lithosphere is destroyed in association with
________.
A) divergent plate boundaries - correct answer ✔✔18) Oceanic ridges and rises result from
seafloor spreading along ________.
answered already passed
D) precision-depth recorder (PDR) - correct answer ✔✔1) The instrument that emits a high-
frequency sound beam to measure the depth of the ocean developed in the 1950s is the
________.
C) sound waves (specifically seismic reflecting profiling) - correct answer ✔✔2) The method that
is used most frequently to investigate sediment and rock layers of the sea floor is ________.
A) the shape of the ocean surface reflects large features on the seafloor - correct answer ✔✔3)
Satellites are used to map the ocean floor because ________.
D) interior continental areas and abyssal plains on the ocean floor - correct answer ✔✔4) The
two relatively flat areas on the hypsographic curve represent ________.
A) shelf, slope, rise, abyssal plain - correct answer ✔✔5) The correct order of seafloor features
from the coast to the mid-ocean ridge is ________.
C) Deep-sea trenches - correct answer ✔✔6) Active continental margins are characterized by
which of the following?
D) Broad continental shelves - correct answer ✔✔7) Characteristics of passive continental
margins include which of the following? 7) _____
B) Fracture zone - correct answer ✔✔8) Which of the following features is related to transform
faults along mid-ocean ridges?
, A) continental rise - correct answer ✔✔9) Directly seaward of the continental shelf is a more
steeply sloping region called the ________.
B) turbidity currents - correct answer ✔✔10) Underwater avalanches of muddy water mixed
with rocks and debris are ________.
A) erosion by turbidity currents - correct answer ✔✔11) Submarine canyons were most likely
formed by ________.
A) abyssal hills - correct answer ✔✔12) Extending from the base of the continental rises into the
deep-ocean basins are flat depositional surfaces called
D) the presence of convergent active margins - correct answer ✔✔13) Relatively few abyssal
plains are located in the Pacific Ocean due to ________.
A) seamounts - correct answer ✔✔14) Volcanic peaks on the deep-ocean floor with conical tops
are called ________.
D) abyssal hills - correct answer ✔✔15) Volcanic features on the ocean floor that are less than
1,000 meters (0.6 miles) tall are called ________.
B) oceanic trenches - correct answer ✔✔16) Along the margins of the Pacific are found most of
Earth's ________.
C) deep-sea trenches - correct answer ✔✔17) Older lithosphere is destroyed in association with
________.
A) divergent plate boundaries - correct answer ✔✔18) Oceanic ridges and rises result from
seafloor spreading along ________.
